Book excerpt: Annotation Celebrating its 90th year, the newest edition of "The Bible" in its field brings together volumes of knowledge, information and data gathered, revised and improved upon from experts throughout the mechanical industries. Extraordinarily comprehensive yet easy to use since it premiered. Machinery's Handbook provides mechanical and manufacturing engineers, designers, draftsmen, toolmakers, and machinists with a broad range material, from the very basic to the more advanced. It has always, and continues to provide industry fundamentals and standards while it leaps ahead into the 21st century with material reflecting technological advances and offering vast editorial improvements, making the 27"' Edition the best tool ... ever!